core/library/sodium-plus/docs/SodiumPlus/randomness.md

Randomness

See also: Libsodium's documentation on its random data features.

randombytes_buf

Obtain a buffer filled with random bytes.

Parameters and their respective types:

1. {number} Size of buffer to return

Returns a Promise that resolves to a Buffer

randombytes_uniform

Generate an integer between 0 and upperBound (non-inclusive).

For example, randombytes_uniform(10) returns an integer between 0 and 9.

Parameters and their respective types:

1. {number} Upper bound

Returns a Promise that resolves to a number.

Example for randombytes

const { SodiumPlus } = require('sodium-plus');
let sodium;

(async function () {
    if (!sodium) sodium = await SodiumPlus.auto();
    
    let someBuf = await sodium.randombytes_buf(32);
    console.log(someBuf.toString('hex'));

    let someInt = await sodium.randombytes_uniform(65536);
    console.log(someInt);
})();